#F05B1B
Closest named color: Orange Pant (#FB5607). oklch(66% 0.196 39.9), rgb(240, 91, 27).
Aa
Black text reads best on this color (6.21:1).
About this color
#F05B1B is a medium-light, vivid red. In OKLCH its lightness is 66%, its chroma 0.196 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Orange Pant (#FB5607), ΔE 0.020 away. Black text reads best on it, at 6.21:1.
| Hue family | Reds |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.196) |
| Temperature | warm |
| Nearest name | Orange Pant (#FB5607) |
| Black text | 6.21:1 |
| White text | 3.37:1 |
Values
| HEX | #F05B1B |
| RGB | rgb(240, 91, 27) |
| HSL | hsl(18, 88%, 52%) |
| OKLCH | oklch(66% 0.196 39.9) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #F05B1B | 3.37:1 | AA large text | Lc -65.7 | Content text, not long reading |
| Black text on #F05B1B | 6.21:1 | AA | Lc 43.8 | Non-text elements, placeholder text |
| #F05B1B text on white | 3.37:1 | AA large text | Lc 60.2 | Content text, not long reading |
| #F05B1B text on black | 6.21:1 | AA | Lc -41.5 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#FEF3EF
oklch(97.2% 0.013 41.2)
-
Step 100
100
#FBE4DC
oklch(93.5% 0.028 40.2)
-
Step 200
200
#F9CEBF
oklch(88.4% 0.053 40.1)
-
Step 300
300
#F7AC92
oklch(81% 0.096 39.9)
-
Step 400
400
#EF7B52
oklch(70.8% 0.154 39.8)
-
Step 500
500 (this color)
#F05B1B
oklch(66% 0.196 39.9)
-
Step 600
600
#C34200
oklch(55.6% 0.175 39.8)
-
Step 700
700
#A53700
oklch(49.2% 0.154 40)
-
Step 800
800
#882C00
oklch(42.7% 0.134 40.1)
-
Step 900
900
#732300
oklch(37.7% 0.119 39.6)
-
Step 950
950
#451402
oklch(26.9% 0.081 40)
#F05B1B with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #87770A | 0.194 |
| Deuteranopia (no green cones) | #AB980F | 0.176 |
| Tritanopia (no blue cones) | #FF3150 | 0.086 |
| Achromatopsia (no color) | #8C8C8C | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F05B1B
#F05B1B
oklch(66% 0.196 39.9)
- #00A2C4
#00A2C4
oklch(65.9% 0.12 219.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #F05B1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Orange Pant #FB5607 ΔE 0.020
- Bright Orange #FF5B00 ΔE 0.028
- Blood Orange #FE4B03 ΔE 0.031
- Orange Red #FF4500 ΔE 0.037
- Orangered #FE420F ΔE 0.040
- Orangey Red #FA4224 ΔE 0.042
- Tomato #FF6347 ΔE 0.045
- Red Orange #FD3C06 ΔE 0.045
Use #F05B1B in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.